Earlier quoted context omitted.
Profit is what's left over after all costs are taken out from the price, including labour costs. Profit, by definition, is what the capitalist gets to keep for having done nothing but owning the capital that was used to generate the profit. So like when Bezos makes $4M+ per hour, it's not a wage because he is not working for it, he could be sleeping or shitting and he would make the same money. He gets that just beca…
And laborers generate a profit when their cost of living is below their total wage. At that point the cost of producing their labor (food, water, shelter) is below their revenue.
That is not a profit because it is not generated from capital. "Cost of producing labour" is not just food/water/shelter/etc. it is the literal time you have to give up in order to perform the labour. Someone who owns capital gets the profit which the capital generates at zero cost or time spent.